Interrogation signal parameter configuration

ABSTRACT

An identity of a container coupled to a content level sensor device is received. A plurality of signal parameters associated with the container is identified. The signal parameters are transmitted to the content level sensor device, wherein the signal parameters are indexed according to a level of content in the container.

CROSS REFERENCE TO OTHER APPLICATIONS

This application is a continuation in part of co-pending U.S. patent application Ser. No. 14/725,979 entitled SENSOR DEVICE CONFIGURATION filed May 29, 2015, which is incorporated herein by reference for all purposes, which claims priority to U.S. Provisional Application No. 62/007,841, entitled BEVERAGE TRACKING, REPLENISHMENT, CONSUMPTION AND INVENTORY MANAGEMENT filed Jun. 4, 2014 which is incorporated herein by reference for all purposes.

BACKGROUND OF THE INVENTION

Certain items such as food and beverages are often sold and stored in product containers. In many instances, an inventory of content remaining in product containers is taken to determine the number of product containers to purchase. For example, a consumer periodically performs a visual check to inventory contents remaining in food and beverage containers to identify a shopping list of items to purchase from a grocery store. In another example, bar and restaurant operators periodically inventory the amount of alcohol left in bottles to determine the amount of alcohol sold and identify quantity and type of alcohol to be purchased/replenished. The inventory of content remaining in product containers has been traditionally determined manually. This manual process is often laborious, imprecise, and error prone. For example, it is often difficult for a person to visually determine an amount of liquid beverage remaining in a bottle with precision in a reliable manner. In commercial settings, the amount of time spent by an employee to manually inventory the remaining content represents a real employment cost realized by the employer. Therefore, there exists a need for a better way to determine the amount of content remaining in a container.

BRIEF DESCRIPTION OF THE DRAWINGS

Various embodiments of the invention are disclosed in the following detailed description and the accompanying drawings.

FIG. 1 is a diagram illustrating an embodiment of a fill level sensor engaged in a container.

FIG. 2A is a vertical cross-sectional diagram illustrating an embodiment of a fill level sensor.

FIG. 2B is a vertical cross-sectional diagram illustrating an alternative embodiment of a fill level sensor.

FIGS. 3A-3B are bottom view diagrams illustrating embodiments of a fill level sensor.

FIGS. 4A-4C are profile diagrams illustrating embodiments of a fill level sensor.

FIG. 5 is a diagram showing alternative embodiments of a waveguide.

FIG. 6 is a diagram showing a receiver extension tube.

FIGS. 7A-7C show various container covers that may be similarly configured to include one or more of the components shown in other figures.

FIG. 8 is a block diagram illustrating an embodiment of a system for an automated container content management environment.

FIG. 9 is a flowchart illustrating an embodiment of a process for providing a configuration for a sensor device.

FIG. 10 is a diagram illustrating an embodiment of a user interface for specifying a container type to be associated with a sensor device.

FIG. 11 is a flowchart illustrating an embodiment of a process for configuring a sensor device.

FIG. 12 is a flowchart illustrating an embodiment of a process for performing an action based on a determined content amount.

FIG. 13 is a flowchart illustrating an embodiment of a process for determining one or more sets of configuration parameters of a container.

DETAILED DESCRIPTION

The invention can be implemented in numerous ways, including as a process; an apparatus; a system; a composition of matter; a computer program product embodied on a computer readable storage medium; and/or a processor, such as a processor configured to execute instructions stored on and/or provided by a memory coupled to the processor. In this specification, these implementations, or any other form that the invention may take, may be referred to as techniques. In general, the order of the steps of disclosed processes may be altered within the scope of the invention. Unless stated otherwise, a component such as a processor or a memory described as being configured to perform a task may be implemented as a general component that is temporarily configured to perform the task at a given time or a specific component that is manufactured to perform the task. As used herein, the term ‘processor’ refers to one or more devices, circuits, and/or processing cores configured to process data, such as computer program instructions.

A detailed description of one or more embodiments of the invention is provided below along with accompanying figures that illustrate the principles of the invention. The invention is described in connection with such embodiments, but the invention is not limited to any embodiment. The scope of the invention is limited only by the claims and the invention encompasses numerous alternatives, modifications and equivalents. Numerous specific details are set forth in the following description in order to provide a thorough understanding of the invention. These details are provided for the purpose of example and the invention may be practiced according to the claims without some or all of these specific details. For the purpose of clarity, technical material that is known in the technical fields related to the invention has not been described in detail so that the invention is not unnecessarily obscured.

A sensor device is disclosed. For example, the sensor device is a container cover (e.g., a bottle cap) that electronically measures an amount of liquid remaining in a container (e.g., beverage bottle) covered by the container cover. In some embodiments, the sensor device includes a content level sensor. For example, the sensor transmits an ultrasonic signal and measures the amount of time it takes for the signal to bounce off a liquid content remaining in the container and return back to the sensor to determine the liquid level remaining in the container. The sensor device includes a memory storing a container cover identifier. For example, each different sensor device is assigned a unique identifier to be able to uniquely identify each different sensor device. The sensor device includes a transmitter that transmits the sensor device identifier in response to a stimulus. For example, when a button of the sensor device is pressed, the sensor device wirelessly broadcasts the sensor device identifier. The sensor device includes a receiver that receives a sensor configuration. For example, because the sensor device may be utilized with various different types of containers, a configuration specific to the type of container that is to be assigned to the sensor device is received. A user may specify the container type using an interface device and the interface device wirelessly pairs with the container cover to transmit the sensor configuration specific to the specified container type. The sensor device includes a memory that stores the received sensor configuration. The sensor configuration may be utilized by the sensor device to measure information specific to the associated container type. For example, a type of ultrasonic signal transmitted by the sensor device to measure the amount of content remaining in the container is specified by the received and stored sensor configuration.

In some embodiments, the sensor device configuration is varied according to the level content in the container. For example, certain types of ultrasonic signals (e.g., signals with less energy) may work better when a bottle is full (e.g., resulting in reduced undesired ringing reflection within the bottle) as compared to another type of ultrasonic signal (e.g., signals with higher intensity that will travel further) that works better when the bottle is nearly empty. The varied sensor device configuration may include parameters of an interrogation signal to be transmitted to detect the amount of content included in the container. Examples of the interrogation signal parameters that are varied include one or more of the following: a shape, a waveform, a frequency, a pulse width, a duty cycle, a number of signal pulses, a signal amplitude, a signal energy, and/or a signal intensity. The varied sensor device configuration may also include signal receiver parameters. For example, parameters such as gain and/or detection threshold may vary based on level of content in the container.

FIG. 1 is a diagram illustrating an embodiment of a fill level sensor engaged in a container. Container 102 is filled with a liquid. In the example shown, fill level sensor device 100 is configured as a container cover (e.g., a bottle cap with a spout). The liquid fill level of container 102 may be determined by measuring the distance between sensor device 100 and the liquid surface of container 102. As shown by line 104, a transmitter of sensor device 100 sends out a signal (e.g., ultrasonic signal) that gets reflected by the surface of the liquid. The reflected signal is detected by a receiver of sensor device 100.

By measuring the amount of time it took to receive the reflected signal, the distance traveled by the signal before being reflected (e.g., distance between sensor device 100 and liquid surface is half of the total distance traveled by the signal) may be determined by multiplying the amount of time by the speed of the signal (e.g., speed of sound).

In some embodiments, to determine the amount of time it took to receive the reflected signal, the received reflected signal is filtered to isolate the desired signal (e.g., band-pass filter the received signal), amplified, and analyzed to detect peaks that correspond to when the reflected signal was received. A predetermined beginning portion (e.g., predetermined amount of time in the beginning of the signal) of the received signal may be ignored when analyzing the signal to ignore signals that were detected due to coupling between the transmitter and receiver of sensor device 100. For example, when the transmitter transmits the signal, the signal may be received by the receiver of sensor device 100 (e.g., conducted through sensor device 100, due to undesired reflection, etc.) before the signal is reflected by the contents of the container, and the undesired received signals received in the beginning portion of the received signal are ignored when identifying the desired received reflected signal.

If the total distance between the bottom of container 102 and sensor device 100 is known, the fill height of container 102 can be determined (e.g., total distance between bottom and sensor device 100 minus distance between sensor device 100 and liquid surface). If the shape and volume of the bottle are known, the volume of liquid contained in container 102 may be determined. For example, a table/database/data structure that maps fill level (e.g., fill height, height between liquid surface and sensor device 100, etc.) to liquid volume of the container is utilized to determine liquid volume corresponding to the determined fill level. Different tables/databases/data structures may exist for different types of containers.

Sensor device 100 includes a transmitter for transmitting the reflected signal and a receiver for receiving the reflected signal. However, due to the narrow opening of container 102, the placement of the transmitter and receiver in sensor device 100 is limited to the narrow configuration of the bottle opening. If the transmitter and receiver are placed too close together, the transmitter and receiver may become coupled together. For example, the receiver may receive a strong signal from the transmitter as soon as the transmitter transmits a signal and the receiver may require a long settling time before the receiver is able to detect the desired reflected signal. If the distance between sensor device 100 and the liquid surface is small, the desired reflected signal may be received before the receiver has settled and the receiver is unable to detect the desired reflected signal. In some embodiments, the transmitter and receiver of sensor device 100 are vertically offset from each other to create a desired amount of separation distance between the transmitter and receiver. The separation distance may reduce the coupling of the transmitter and receiver and allow dampening of the transmitted signal propagated between the transmitter and the receiver through sensor device 100. However, the vertical separation of the transmitter and the receiver may create undesired reflections within the container (e.g., reflections from the neck of a bottle) that make it difficult to identify the signal reflected from the liquid surface. In some embodiments, a waveguide extending from the transmitter is utilized to direct the signal transmitted by the transmitter towards the desired direction and location to minimize undesired effects.

FIG. 2A is a vertical cross-sectional diagram illustrating an embodiment of a fill level sensor. In some embodiments, sensor device 200 is sensor device 100 of FIG. 1. FIG. 2B is a vertical cross-sectional diagram illustrating an alternative embodiment of a fill level sensor. In the examples shown, sensor device 200 is configured as a bottle stopper with a spout. As shown in FIG. 2A, sensor device 200 includes flexible container coupling ridges 220 (e.g., rubber rings) that allow sensor device 200 to be coupled to and seal an opening of a container (e.g., as shown in FIG. 1). However, in other embodiments, sensor device 200 may be configured as a different cover of a container. For example, the components of sensor device 200 may be included in a screw-on cap or any other cap that engages a container.

Sensor device 200 includes circuit board 212. For example circuit board 212 is a printed circuit board. Circuit board 212 may connect together one or more of the following: a processor, a memory, a data storage, a connector, an integrated chip, a transmitter, a receiver, an accelerometer, a tilt sensor, a solar panel, a display, a gyroscope, a wireless data communication signal transmitter (e.g., a component able to communicate using Bluetooth, Wi-Fi, other wireless protocol, etc.), and other electrical components. For example, a processor connected to circuit board 212 provides a command to transmit an acoustic signal using a transmitter and processes a received signal to determine a fill level indicator. The fill level indicator may be transmitted wirelessly to another device such as a mobile device, a computer, a display device, or any other computing or display device using a wireless data communication transmitter. Circuit board 212 is connected to battery 206. Battery 206 provides power to the circuit of circuit board 212. Battery 206 may be rechargeable and/or replaceable. The housing of sensor device 200 may be composed of one or more materials. Examples of the materials include a food grade polymer, plastic, rubber, stainless steel, and other metals.

Sensor device 200 includes spout 208. Spout 208 is a part of a channel (e.g., tube) that allows container contents (e.g., liquid) to pass through to the tip opening of spout 208 from a bottom of sensor device 200. For example, a liquid contained in a container that is capped by sensor device 200 is able to pass through sensor device 200 and exit the opening of spout 208 when the container capped by sensor device 200 is tipped over. In some embodiments, circuit board 212 includes a hole that accommodates the channel (e.g., tube) that allows container contents (e.g., liquid) to pass through the circuit board. In other embodiments, spout 208 may not exist in sensor device 200. In some embodiments, sensor device 200 includes a vent pipe (not shown) that allows air to enter a container capped by sensor device 200 as a content of the container is poured out through spout 208. In some embodiments, sensor device 200 includes a motor (not shown) that pumps out contents of the container capped by sensor device 200.

Circuit board 212 is connected to transmitter 204. In some embodiments, transmitter 204 is an acoustic transmitter (e.g., ultrasonic signal transmitter). For example, transmitter 204 is a speaker. In some embodiments, transmitter 204 is a piezoelectric speaker. In some embodiments, transmitter 204 is configured to transmit a signal within the ultrasonic frequencies. In some embodiments, transmitter 204 is configured to transmit a signal between 1 kHz and 400 kHz, inclusive. In some embodiments, transmitter 204 is configured to transmit a 29 kHz to 40 kHz signal. In some embodiments, transmitter 204 is an acoustic impulse generator.

Receiver 214 is connected to circuit board 212 via connector 210. Examples of connector 210 include a wire, a bus, a flexible printed circuit board, and any other connector able to transmit a signal. In some embodiments, receiver 214 is an acoustic receiver (e.g., ultrasonic signal receiver). In some embodiments, receiver 214 is a microphone. In some embodiments, receiver 214 is a Micro Electro Mechanical Systems (MEMS) microphone. For example, receiver 214 is 2 millimeter×3 millimeter in size.

Waveguide 202 extends from transmitter 204. For example, waveguide 202 includes a hollow chamber (e.g., tube) that guides and propagates an acoustic signal emitted by transmitter 204 from one end of the chamber to the other end of the chamber. For example, signal emitted by transmitter 204 enters waveguide 202 at the signal input end of the hollow chamber and exits out its output end of the hollow chamber (e.g., distal end). In some embodiments, waveguide 202 aids in directing an acoustic signal (e.g., ultrasonic signal, acoustic impulse) emitted by transmitter 204 towards the direction of the distance to be measured (e.g., towards bottom of sensor device 200 that will be facing contents of a container capped by sensor device 200).

In some embodiments, it is desirable to reduce and/or attempt to eliminate any signal reflections within the chamber of waveguide 202 as the signal is guided from one end to the other end of waveguide 202. For example, any undesired reflection may mask and hinder detection of the signal reflected by container contents desired to be detected. Any sudden change in the shape of the hollow chamber may create an impedance mismatch that creates a reflection within the hollow chamber of waveguide 202. In some embodiments, the interior wall of the hollow chamber of waveguide 202 is substantially smooth to prevent impedance mismatches. In some embodiments, a shape and/or size of a horizontal cross section of waveguide 202 does not change by more than one percent per millimeter of vertical distance between the signal input end closest to transmitter 204 to the other signal output end (e.g., distal end). In some embodiments, a shape of the opening of one end of the hollow chamber is different from a shape of the opening of the other end of the hollow chamber. For example, a shape of an opening of the transmitter may be different than a desired shape of the signal output end of waveguide 202 (e.g., desired shape to improve directionality of the signal in container). In one example, the signal input end of the chamber of waveguide 202 is shaped in a first shape (e.g., elliptical shape) and the output opening end of the other end of the chamber of waveguide 202 is shaped in a second shape (e.g., circular shape). The change in horizontal cross-sectional shape of the hollow signal propagation chamber may gradually morph from the first shape to the second shape across the vertical length of waveguide 202. For example, the minor axis of the elliptical shape signal input opening gradually is expanded (e.g., flair out smoothly) to generally match the major axis of the elliptical shape in the output end of waveguide 202.

In some embodiments, a cross-sectional area of a signal output opening of the chamber of waveguide 202 is at least as large as a cross-sectional area of a signal input opening of the other end of the chamber of waveguide 202 that receives the signal from transmitter 204. For example, the cross-sectional area of the signal output opening of waveguide 202 is substantially equal to the cross-sectional area of the signal input opening in one embodiment. In another example, the cross-sectional area of the signal output opening of waveguide 202 is greater than the cross-sectional area of the signal input opening.

In some embodiments, the horizontal cross-sectional area of the hollow chamber of waveguide 202 is only greater or equal to a previous horizontal cross-sectional area of the hollow chamber from the input opening to the output opening of waveguide 202. For example, in order to ensure that the amplitude of an acoustic signal outputted by transmitter 204 is maintained as much as possible, the cross-sectional area of the chamber of waveguide 202 never decreases as the acoustic signal is traveling down the chamber of waveguide 202. In some embodiments, the horizontal cross-sectional area of the chamber of waveguide 202 is generally increasing as the signal emitted by transmitter 204 travels down waveguide 202 towards the distal end of waveguide 202.

In some embodiments, the interior hollow chamber of waveguide 202 is coated with a dampening material. For example, an acoustic signal dampening material (e.g., rubber like material) coats plastic walls of the hollow chamber and the coating may assist in reducing the amount of signal that gets transferred to receiver 214 from the portion of the signal that impacts the walls of the hollow chamber. In some embodiments, an interior chamber of waveguide 202 is filled with an acoustically permeable material. In some embodiments, an open end of waveguide 202 is touching transmitter 204. For example, a rubberized end of waveguide 202 seals signals emitted by transmitter 204 within an air chamber of waveguide 202. In some embodiments, a size of a signal input opening of waveguide 202 near transmitter 204 is at least as large as a transmitter opening of transmitter 204. For example, transmitter 204 includes an opening where an acoustic signal is outputted (e.g., speaker grill opening) and the opening of the transmitter is positioned within the signal input opening of waveguide 202 that is at least as large. In some embodiments, a shape and size of a signal input opening of waveguide 202 near transmitter 204 is substantially the same as a transmitter opening of transmitter 204. In some embodiments, waveguide 202 is attached to transmitter 204. For example, transmitter 204 and waveguide 202 are attached together by glue. In some embodiments, waveguide 202 is mechanically coupled to transmitter 204.

In some embodiments, a height of waveguide 202 (e.g., distance between the input and output openings) is approximately 20 millimeters. In some embodiments, a height of waveguide 202 (e.g., distance between the input and output openings) is approximately less than or equal to 0.1 millimeters. In some embodiments, a height of waveguide 202 (e.g., distance between the input and output openings) is approximately less than or equal to 60 millimeters. In some embodiments, widths of a hollow chamber of waveguide 202 (e.g., horizontal cross-sectional area) are approximately less than or equal to 12 millimeters. In various embodiments, the shape, length, and width of waveguide 202 may be any combination of shape, length and width configurations and sizes.

In some embodiments, waveguide 202 is attached to receiver chamber 222 of receiver 214. For example as shown, receiver 214 is recessed in the receiver chamber 222 area that is included/attached to the side of waveguide 202. Waveguide 202 and receiver chamber 222 may be composed of the same or different materials. Examples of the materials include a food grade polymer, plastic, rubber, stainless steel, and other metals. In some embodiments, waveguide 202 is not attached to receiver chamber 222. For example, receiver chamber 222 is attached to the housing of sensor device 200 and not directly attached to waveguide 202.

In some embodiments, a placement distance (e.g., vertical distance) between transmitter 204 and receiver 214 is at least 0.6 millimeters. For example, by vertically offsetting the transmitter 204 and receiver 214, signal coupling between transmitter 204 and receiver 214 through materials of sensor device 200 is reduced and allows better detection of a desired reflected signal received by receiver 214. In some embodiments, at least a portion of transmitter 204 horizontally overlaps receiver 214 in the horizontal position. For example, due to their vertical offset, transmitter 204 is able to horizontally overlap receiver 214 (e.g., at least a portion of width of transmitter 204 overlaps at least a portion of width of receiver 214). In some embodiments, the signal output opening of waveguide 202 is substantially on the same vertical location as the opening of receiver chamber 222. For example, by placing the signal output opening of waveguide 202 on the same vertical location as the opening of receiver chamber 222, an effect of a signal reflection caused by the impedance mismatch of the output opening of waveguide 202 on the detection of a desired received reflected signal is minimized. In some embodiments, the signal output opening of waveguide 202 is parallel to the opening of receiver chamber 222.

In some embodiments, because debris, liquid, and other materials may enter the chamber of waveguide 202 and receiver chamber 222 (e.g., when using spout 208 to pour out contents of the container), the chamber of waveguide 202 and receiver chamber 222 are protected (e.g., to protect transmitter 204 and receiver 214). In some embodiments, a protective layer material covers the output opening of waveguide 202 and the opening of receiver chamber 222. Ideally the protective material must not allow undesired material through to the chambers while at the same time allowing signals (e.g., acoustic signals) to pass through. Protective material 216 covers the output opening of waveguide 202 and is attached to the opening edges of waveguide 202. Protective material 218 covers the output opening of receiver chamber 222 and is attached to the opening edges of receiver chamber 222. In some embodiments, protective material 216 and protective material 218 are the same continuous material. For example, a single connected sheet includes both protective material 216 and protective material 218. In some embodiments, protective material 216 and protective material 218 are not continuous materials. For example, in order to maximize decoupling of the transmitted signal of transmitter 204 and the received signal of receiver 214, protective material 216 and protective material 218 are not made of the same continuous material. In some embodiments, protective material 216 and protective material 218 are different materials. Examples of protective material 216 and protective material 218 include one or more of the following: Mylar sheet, waterproof mesh, acoustic sheet, Teflon, Gortek, polytetrafluoroethylene (PTFE), polyethylene terephthalate (PET), polyethylene terephthalate glycol-modified (PETG), polycarbonate, and any other appropriate mesh or membrane that may be porous or non-porous. For example, a Mylar sheet covering does not allow liquid to pass through while acting like a drum to allow acoustic signals to pass through. In some embodiments, protective material 216 and/or protective material 218 are acoustically transmissive liquid blocking materials. In some embodiments, protective material 216 and/or protective material 218 is optional.

In an alternative embodiment, rather than utilizing a separate transmitter and a separate receiver, a transceiver that acts as both a receiver and transmitter is utilized. For example, receiver 214 is not utilized and transmitter 204 is a transceiver (e.g., piezoelectric transceiver).

FIGS. 3A-3B are bottom view diagrams illustrating embodiments of a fill level sensor. Sensor device 200 is sensor device 200 of FIG. 2A or 2B. Sensor device 200 includes flexible ridges 220 (e.g., rubber rings) that allow sensor device 200 to be coupled to and seal an opening of a container (e.g., as shown in FIG. 1 and FIG. 2A). Spout input opening 209 allows contents (e.g., liquid contents of a container capped by sensor device 200) that enter through spout input opening 209 to be channeled and outputted through spout 208 (shown in FIG. 2A). The signal output end of waveguide 202 is shown in FIGS. 3A and 3B. Receiver 214 is recessed inside receiver chamber 222. In some embodiments, protective material 216 covers the shown output opening of waveguide 202 and is attached to the opening edges of waveguide 202. In some embodiments, protective material 218 covers the shown output opening of receiver chamber 222 and is attached to the opening edges of receiver chamber 222. Vent output opening 224 (e.g., opening of a vent pipe) allows air to enter a container capped by sensor device 200 as contents of the container is poured out through spout input opening 209. In order to show the internal components of various embodiments of sensor device 200, one or more components of sensor device 200 are not shown in FIGS. 3A-3B.

FIGS. 4A-4C are profile diagrams illustrating embodiments of a fill level sensor. The diagrams show various external and internal components of various embodiments of fill level sensor device 200. In order to show the internal components of various embodiments of sensor device 200, one or more components of sensor device 200 are not shown in FIGS. 4A-4C.

FIG. 5 is a diagram showing alternative embodiments of a waveguide. In some embodiments, FIG. 5 shows alternative shapes of waveguide 202 shown in FIGS. 2A, 2B, 3A, 3B, 4A, and 4B.

Waveguides 502-512 show vertical cross-sectional diagrams of different embodiments of waveguide shapes. For example, although waveguides 502-512 are tubular in shape, the cross-sectional diagrams are shown to illustrate the hollow interior of the waveguides. Waveguide 502 includes substantially straight side walls that extend straight from the signal input end of waveguide 502 that receives signal input from transmitter 204 to the signal output end of waveguide 502. Waveguide 504 includes linearly sloped side walls that extend smoothly outward from the signal input end of waveguide 504 that receives signal input from transmitter 204 to the signal output end of waveguide 504. Waveguide 506 includes exponentially sloped side walls that extend smoothly outward from the signal input end of waveguide 506 that receives signal input from transmitter 204 to the signal output end of waveguide 506.

In some embodiments, the output end of a waveguide is configured to accommodate a waveguide extension tube (e.g., tube with two open ends). For example, for certain types of containers, it may be beneficial to guide a signal outputted by transmitter 204 further down in to the container to measure fill level. By utilizing a waveguide extension tube, a waveguide is able to extend beyond the sensor device 200. By extending the waveguide further down the container, undesired reflection in the container may be minimized. In some embodiments, the output end of the waveguide is enlarged to accommodate coupling with a waveguide extension tube. For example, in order to minimize the impedance mismatch between the output end of a waveguide with the input end of the waveguide extension tube to be coupled, the transition between the interior output opening of the sensor waveguide and interior input opening of the extension tube must be smooth. In some embodiments, the interior opening widths of waveguide extension tubes 514, 516 and 518 are substantially similar to interior opening widths of waveguides 508, 510, and 512, respectively.

Waveguide extension tubes 514, 516 and 518 are shown in profile view. Although waveguide extension tubes 514, 516 and 518 are shown separated from waveguides 508, 510, and 512, respectively, to show the different components, waveguide extension tubes 514, 516 and 518 may be inserted into waveguides 508, 510, and 512, respectively, to be coupled (e.g., friction coupling, mechanical coupling, etc.) together. To accommodate for the thickness of the waveguide extension tube, waveguides 508, 510, and 512 include bell shaped ends that can be coupled with waveguide extension tubes 514, 516, and 518, respectively, to create a relatively smooth transition between the interior walls of the sensor waveguides and the waveguide extension tubes. In some embodiments, a waveguide extension tube is removable from a sensor waveguide. In some embodiments, a waveguide extension tube is permanently coupled (e.g., glued) to a sensor waveguide. Examples of the materials that make up waveguide extension tubes 514, 516, and 518 include a food grade polymer, plastic, rubber, stainless steel, and other metals.

FIG. 6 is a diagram showing a receiver extension tube. In some embodiments, FIG. 6 shows an embodiment of receiver 214 and receiver chamber 222 of sensor device 200 shown in FIGS. 2A, 3A, and 3B. Receiver 214 and receiver chamber 222 are shown in cross sectional view and receiver extension tube 600 is shown in profile view. Although receiver extension tube 600 is shown separated from receiver chamber 222 to show the different components, receiver extension tube 600 may be inserted into receiver chamber 222 to be coupled together. By utilizing a receiver extension tube, a receiver chamber is able to extend beyond the sensor device 200.

In some embodiments, the output end of receiver chamber 222 is configured to accommodate receiver extension tube 600 (e.g., tube with at least two open ends). For example, for certain types of containers, it may be beneficial to receive a signal outputted by transmitter 204 further down in to the container within receiver extension tube 600. By extending further down the container the receiver chamber that will guide a received signal to receiver 214, undesired reflection in the container may be rejected from entering the extended receiver chamber. Receiver chamber 222 is configured to accommodate coupling (e.g., friction coupling, mechanical coupling, etc.) with receiver extension tube 600. The size of receiver chamber 222 is large enough to accommodate for the thickness of receiver extension tube 600. In some embodiments, a receiver extension tube is removable from receiver chamber 222. In some embodiments, receiver extension tube 600 is permanently coupled (e.g., glued) to receiver chamber 222. In some embodiments, at least one end of receiver extension tube 600 is sealed with an acoustically transmissive liquid blocking material (e.g., material 218 of FIG. 2A and FIG. 3B). The lengths, widths, and/or shape of receiver extension tube 600 may vary across different embodiments. Examples of the materials that make up receiver extension tube 600 include a food grade polymer, plastic, rubber, stainless steel, and other metals. In some embodiments, the interior opening width of receiver extension tube 600 is at least as large as a size of an opening of receiver 214 that is configured to receive a signal.

In the example shown, receiver extension tube 600 includes optional pairs of holes/slots 602, 604, and 606. Each hole of each pair is on the same horizontal axis position (e.g., vertical position) substantially opposite one another on receiver extension tube 600. Although three pairs have been shown, any number of pairs may exist in other embodiments. In some embodiments, pairs of holes/slots 602, 604, and 606 allow receiver 214 to act as a shotgun/parabolic microphone. For example, receiver 214 is able to directionally better detect signals received at the bottom of receiver extension tube 600 rather than the sides of extension tube 600. Signals received at the sides of receiver extension tube 600 (e.g., received through holes/slots 602, 604, and 606) may be largely cancelled out (e.g., signal waves are cancelled as signal is received through each opposite hole/slot of each hole/slot pair). In some embodiments, pairs of holes/slots 602, 604, and 606 are sealed with an acoustically transmissive liquid blocking material (e.g., material 218 of FIG. 2A and FIG. 3B).

The example container cap shape of fill level sensors (e.g., sensor device 200) shown in the Figures is merely illustrative. One or more of the internal components shown in FIGS. 2A-6 may be configured and included similarly in different types of container covers/caps. FIGS. 7A-7C show various container covers that may be similarly configured to include one or more of the components shown in other figures.

FIG. 8 is a block diagram illustrating an embodiment of a system for an automated container content management environment.

Sensor devices 802 and 804 each include a sensor for automatically determining the amount of content remaining in a container covered by the sensor device. In some embodiments, sensor devices 802 and 804 each include sensor device 100 and/or 200 of FIGS. 1-7C. Although only two sensor devices have been shown in FIG. 8, any number of sensor devices may exist in various embodiments. Examples of sensor devices 802 and 804 include a bottle cap, a bottle cap with a spout, a container lid, and any other container cover configured to cover at least a portion of an opening of a container.

In some embodiments, the sensor devices utilize one or more of the following to detect remaining content amount/level of content in a container and/or a volume of flow outputted from the container: ultrasound, sonar, inductive, capacitive, IR, line, video sensors, etc.

In various embodiments, sensor device 802 and/or sensor device 804 includes one or more of the following features:

a threading or another portion utilized as an inductive sensor

detection of content expiration by sensing the chemical composition and nutrient value using humidity, barometry, light, pH, and/or odor sensors

input mechanism to receive an identification of a classification of a food type (e.g., tequila, rum, 5% ale, etc.)

a temperature sensor and notification mechanism to notify a user if the temperature is not optimal

a click wheel input mechanism based on mechanical and/or electrical components (e.g., capacitive sensor)

a display configured to display quantity, expiration date, type of product, nutrient information, temperature, last used information, etc.

a wireless radio to identify and connect to a wireless network (e.g., Bluetooth, WiFi, etc.)

detect motion using an accelerometer to allow automatic power on/off on an as needed basis to optimize power consumption (e.g., an optimal power management algorithm to store, manage, and transmit the information to minimize power usage)

a touch sensitive screen that provides an interface for placing an order

impellers, flow restrictive mechanisms, or any conduit utilized in pouring content out of a container

a hollow wedge configured to be resizable to fit a neck size of a container bottle

an electronic or physical label to allow differentiation of different sensor devices (e.g., based on the type of beverage, content, brand, etc.)

a mechanical motor or other mechanism that can be utilized to clean a tip of a spout (e.g., cleaned using suction or air pressure)

a replaceable and/or rechargeable battery (e.g., battery may be recharged using inductive charging (e.g., Qi) and/or resonance wireless charging)

Interface Device 806 receives data from one or more sensor devices. For example, sensor device 804 broadcasts an identifier of an amount of content remaining in a container covered by sensor device 804 and interface device 806 receives the identifier for storage and processing. In some embodiments, sensor devices 802 and 804 each need to be configured for a specific type of container to allow each sensor device to be able to more accurately measure the amount of content remaining in a container engaged by the sensor device. For example, the waveform of the ultrasonic signal emitted by a sensor of the container cover is to be specifically configured for the shape/size of the container. In some embodiments, interface device 806 pairs with a sensor device (e.g., via a wireless Bluetooth connection) to transmit configuration data specific to the type of container associated with the sensor device. In some embodiments, a user utilizes interface device 806 to specify the type of container to be associated with a specific sensor device. In some embodiments, a user utilizes interface device 806 to view, manage, and/or configure one or more associated sensor devices. For example, a user utilizes an application of interface device 806 to configure sensor devices, view an inventory of remaining content measured by sensor devices, and automate ordering of low inventory content. Examples of interface device 806 include a mobile device, a smartphone, a smart watch, a wearable computer, a laptop computer, a desktop computer, and any other type of computer. In some embodiments, the interface device is also a charging station for one or more sensor devices. In some embodiments, a charging station includes a mechanism to sanitize a sensor device (e.g., via a suction cleaning, heating, blow drying, etc. mechanism).

In some embodiments, interface device 806 (e.g., base station) acts as a central communication hub for all sensor devices of a user within a certain proximity. In some embodiments, interface device 806 is associated with a specific user. Multiple interface devices may be utilized to manage the same set of sensor devices. For example, multiple interface devices may communicate with one another and/or with a backend server to synchronize data. In some embodiments, interface device 806 includes BLUETOOTH, BLUETOOTH Low Energy, and/or wireless (802.x) protocol-based wireless chipsets. In some embodiments, interface device 806 includes a display to display sensor device status, beverage quantity, recipes, order reminders, etc. In some embodiments, interface device 806 communicates with a Point of Sales (POS) system to correlate sales data with measured content utilization/consumption/depletion.

Interface device 806 is connected to server 810 (e.g., backend server) by network 808. In some embodiments, server 810 remotely stores and/or processes measurement data received from sensor devices. For example, measurement data periodically broadcasted by sensor devices 802 and 804 is received by interface device 806 and interface device 806 provides the received data to server 810 for storage and/or backend server processing. In some embodiments, interface device 806 and/or server 810 utilizes measurement data of a sensor device to calculate an amount of content remaining in a container engaged by the sensor device. For example, a round trip signal reflection time measured by a sensor device is utilized to calculate a percentage fill amount of content remaining in a container. In some embodiments, server 810 processes current and/or historical content measurements to provide analytics (e.g., consumption patterns, determine inventory, analyze cost of goods sold, identify popularity trends, etc.) and inventory management solutions (e.g., inventory forecasting, inventory planning, automated inventory ordering, etc.).

In some embodiments, the system shown in FIG. 8 is utilized in a bar/restaurant environment to automatically track and manage inventory of liquor remaining in liquor bottles. Each liquor bottle is capped using a sensor device that is configured to be a cap for the liquor bottle. In some embodiments, the sensor devices detect the quantity of liquid/beverage remaining in each bottle and broadcast the detected quantity to interface device 806. The interface device reports the received quantity information to server 810. In some embodiments, server 810 provides an online interface to manage container content (e.g., beverage) inventory. For example, a bar/restaurant user entity may access server 810 via an application of interface device 806 and/or a webpage interface provided by server 810 to view and manage inventory of one or more tracked beverage products. Inventory information (e.g., including inventory remaining in open containers measured by sensor devices and full bottle inventory on hand in storage) may be updated automatically and viewed and exported in real time. The inventory of products may be classified by brands, drink type (tequila, whiskey, etc.), recipe (e.g., amount of each mixed drink able to be made using remaining inventory), and/or popularity.

In some embodiments, for a specific user account associated with one or more sensor devices, server 810 learns the consumption pattern, nutrients, and preferences in various types of beverages, flavors, taste, and brands. In some embodiments, using interface device 806, a user is able to access information about consumption quantity, humidity, oxygen content, inventory, drink recipes, and seasonal recommendations associated with current inventory detected using one or more sensor devices. In some embodiments, using interface device 806, a user may access a marketplace to order beverages from various distributors and delivery services. In some embodiments, a user is notified via interface device 806 of a need to replenish an inventory of beverages and may also directly notify one or more distributors to place one or more appropriate orders. In some embodiments, interface device 806 provides recommendations for various drink recipes based on existing inventory detected using one or more sensor devices. In some embodiments, consumption data obtained across a plurality of different user entities may allow trend analysis and manufacturing forecasting across user entities.

In some embodiments, the sensor device includes a mechanism to control and limit an amount of beverage poured via a spout of the sensor device. In some embodiments, the sensor device includes a mechanism to evacuate oxygen out of a container and reseal the container. For example, in order to preserve the freshness of wine, the sensor includes an electronic air pump that pumps air out of a container. In some embodiments, the sensor device includes or has more sensors to detect temperature, humidity, acidity and/or nutrient value of content included in a container. The detected sensor information may be transmitted to an interface device and/or a server (e.g., interface device 806 and/or server 810). In some embodiments, a user is provided a notification when a detected content temperature and/or oxygen level is outside a recommended range.

One or more of the following may be included in network 808: a direct or indirect physical communication connection, mobile communication network, Internet, intranet, Local Area Network, Wide Area Network, Storage Area Network, a wireless network, a cellular network, and any other form of connecting two or more systems, components, or storage devices together. Additional instances of any of the components shown in FIG. 8 may exist. For example, server 810 may be a distributed server and/or may be connected to a plurality of interface devices. In another example, a plurality of interface devices may be utilized to manage and/or utilize the same or different container covers. In some embodiments, components not shown in FIG. 8 may also exist.

FIG. 9 is a flowchart illustrating an embodiment of a process for providing a configuration for a sensor device. The process of FIG. 9 may be implemented on interface device 806 of FIG. 8. In some embodiments, the sensor device measures an amount of content included in a container (e.g., sensor device is a bottle cap that measures amount of liquid remaining in a bottle capped by the sensor device) and the sensor device must be configured for a specific container type of the container for the sensor device to be able to more accurately measure the amount of content in the container. For example, various types of containers are shaped differently and the best waveform of the signal utilized to measure the amount of content included in a container may depend on the shape of the container. In some embodiments, a depth measurement provided by the sensor device is translated to a volume and/or percentage measurement value using a shape/volume profile of the container type associated with the sensor device. In some embodiments, the process of FIG. 9 is initiated when a user initiates a sensor device configuration process using an interface device.

At 902, a sensor device identifier of a sensor device is received. In some embodiments, the sensor device is sensor device 100 and/or 200 of FIGS. 1-7C. In some embodiments, the sensor device is sensor device 802 or 804 of FIG. 8. In some embodiments, the sensor device identifier has been wirelessly transmitted by the sensor device. For example, the sensor device broadcasts a unique identifier of the sensor device using a BLUETOOTH (e.g., BLUETOOTH low energy), WiFi, and/or other local or short range wireless communication protocol/signal. In some embodiments, receiving the sensor device identifier includes listening for a signal from a desired type of device (e.g., listen for a signal that is identified as sent by a sensor device). In some embodiments, the sensor device identifier is received via a wired connection. In some embodiments, the sensor device identifier has been transmitted by the sensor device in response to a user indication to the sensor device. For example, when a button on the sensor device is pressed for at least a threshold period of time, the sensor device transmits the sensor device identifier.

At 904, it is determined whether the sensor device identifier has been already associated with a container type. For example, the sensor device has been previously configured for a specific container type at 914 of FIG. 9. In some embodiments, a user desires to know which container type has been already associated with the sensor device. For example, a user may have a plurality of sensor devices that have been each already configured for and capped on a specific type of container. The user may need to remove all of the sensor devices from their associated containers to wash the sensor devices. For example, certain food service health codes may require restaurants/bars to periodically wash bottle cap spouts and sensor devices are configured as bottle cap spouts. However, because each sensor device has been configured for a specific container, once the sensor devices have been washed, the sensor devices may need to be returned back to the correct specific type of container associated with each sensor device. Although one alternative is reconfiguring each sensor device after being washed, the process of reconfiguring each sensor device may be inefficient and cumbersome to perform after each wash as compared to simply returning each sensor device back to the correct specific type of container.

In some embodiments, determining whether the sensor device identifier has been already associated with a container type includes determining whether a storage structure (e.g., table, database, list, etc. stored locally at an interface device and/or remotely at a backend server) includes an entry associating the sensor device identifier with the container type. In some embodiments, determining whether the sensor device identifier has been already associated with a container type includes analyzing information received from the sensor device. For example, the sensor device provides data indicating that the sensor device has been already associated with a container type and configured for the container type.

If at 904 it is determined that the sensor device identifier has been already associated with a container type, at 906, an indication of the container type is provided. For example, an identifier of the container type is displayed on a screen of an interface device to allow a user to return the sensor device back to the container that is of the displayed type. In some embodiments, an indication of the last determined remaining content amount/level determined using the sensor device is provided. For example, there may exist a plurality of containers of the same type and using the content amount/level information, the user is able to return the sensor device back to the identified container type with the identified content level. In some embodiments, an indication is received from a user to reconfigure the sensor device and the process proceeds to 908 (not shown). For example, although the sensor device has been already associated with a container type, a user desires to associate the sensor device with a different container type and the user presses a button on the sensor device to reconfigure the sensor device.

If at 904 it is determined that the identifier has not been already associated with a container type, at 908, communication is established with the sensor device. For example, a wireless communication channel is established. In some embodiments, a BLUETOOTH connection is established. For example, the sensor device is paired with an interface device and the sensor device enters into a paired communication mode.

At 910, an identification of a container type to be associated with the sensor device is received. In some embodiments, the container type identifies a type of container to be covered/capped/engaged by the sensor device. For example, an identification of the specific beverage bottle type to be capped by the sensor device is received.

In some embodiments, the container type identification is received via a user indication. For example, a user selects the container type from a list of container types. In some embodiments, receiving the container type includes receiving an identification of a product and/or packaging to be engaged with the sensor device. For example, a user indicates a product (e.g., liquor product in a specified packaging) to be engaged with the sensor device. In some embodiments, there exists a database of container types for various types of commercially sold beverage packages and the database is utilized to determine a corresponding container type to a user identification of a product.

In some embodiments, receiving the identification of the container type includes receiving a camera image. For example, using a camera of an interface device, a user captures an image of at least a portion of the container to be associated with the sensor device and the image (e.g., an image of a label on a product packaging) is analyzed to automatically determine the container type of the container.

In some embodiments, receiving the identification of the container type includes receiving a barcode/product identifier associated with the container type. For example, using an interface device, a user captures an image of a barcode (e.g., UPC barcode) on the product container to be associated with the sensor device and the image is analyzed to read the barcode identifier of the container. In some embodiments, a container type corresponding to the barcode identifier is identified. For example, the barcode identifier is utilized to search a database that includes entries that associate barcode identifiers with corresponding container types. In some embodiments, the barcode identifier is provided to a server and the server provides a corresponding container type identifier. In some embodiments, there exists a plurality of containers types associated with a barcode/product identifier and a user provides an indication to indicate the specific container type among the plurality of container types associated with the sensor device.

In some embodiments, the sensor device measures a distance between the sensor device and a level of liquid remaining in a container to determine the liquid fill level. For example, a transmitter of the sensor device sends out a signal (e.g., ultrasonic signal) that gets reflected by the surface of the liquid in the container. The reflected signal is detected by a receiver of the sensor device. By measuring the amount of time it took to receive the reflected signal, the distance traveled by the signal before being reflected (e.g., distance between sensor device and liquid surface is half of the total distance traveled by the signal) may be determined by multiplying the amount of time by the speed of the signal (e.g., speed of sound).

In order to correctly determine the amount of content included in the container from the distance information, various parameters of the container must be known. For example, the height of the interior of the container and variations of the cross sectional volume/area of the container across the various depths of the container are needed to calculate the amount/percent of content left in the container. In one example, if the total distance between the bottom of the container and the sensor device is known, the fill height of the container can be determined (e.g., total distance between the bottom and the sensor device minus distance between the sensor device and liquid surface). If the shape and volume of the container are known, the volume of liquid contained in container 102 may be determined. In some embodiments, the container type identification is utilized to obtain a formula/table/database/data structure that maps a measured distance (e.g., fill height, height between liquid surface and sensor device, etc.) to a corresponding remaining content volume/percentage for the specific container type.

At 912, the identified container type is associated with the sensor device. In some embodiments, associating the container type with the sensor device includes storing a data entry (e.g., in a database) that associates the container type with the sensor device identifier. For example, a database of associations between various sensor device identifiers and corresponding associated container types is maintained at an interface device (e.g., device 806 of FIG. 8) and/or a backend server (e.g., server 810 of FIG. 8). This database may also be utilized to store determined content volume/level of containers being tracked by the various sensor devices.

At 914, a configuration corresponding to the identified container type is provided to the sensor device. In some embodiments, a sensor device configuration specific to the identified container type is obtained and provided to the sensor device for configuration. For example, the sensor device needs to be configured for a specific type of container type to enable the sensor device to more accurately measure the amount/level of content remaining in a container. In some embodiments, the configuration corresponding to the identified container type is provided via a communication established with the sensor device in 908.

In some embodiments, the sensor device includes a transmitter for transmitting a signal and a receiver for receiving the signal that has been reflected. The parameters of the signal being transmitted may need to be configured specifically for the container that holds the content to be measured. For example, in order to reduce undesired reflections within the container, the transmitted signal is generated based on the parameters specifically configured for the specific container type. In some embodiments, the configuration specifies a waveform/shape of a signal, a length/width of a signal component (e.g., pulse width), a profile of a signal component, a content of a signal component, a number of pulses in the signal component, a frequency of the signal component, an amplitude/intensity of the signal component, a modulation of the signal component (e.g., pulse-width modulation to be utilized), a duty cycle of the signal component, etc. For example, the signal includes one or more component signal pulses and the configuration specifies the shape/waveform of each signal pulse. In some embodiments, the configuration specifies a number of signal pulses to be transmitted sequentially to measure a content amount/level of a container. In some embodiments, the configuration specifies a configuration of a receiver of the sensor component. For example, a type and/or a parameter of one or more signal filters to be utilized to filter a received reflected signal is specified by the configuration.

In some embodiments, the provided configuration specifies a plurality of different sets of configuration parameters for different fill levels of the container. In some embodiments, one or more sets of configuration parameters are indexed according to a corresponding content level. For example, each set of configuration parameters corresponds to a different range of fill levels of the container. In some embodiments, using a default set of configuration parameters an initial approximate fill level is determined and based on the initially determined approximate fill level a more specific set of configuration parameters corresponding to the initial approximate fill level is utilized to determine a more specific fill level. The default set of configuration parameters may be specific to the specific detected container (e.g., default set of configurations is provided to the sensor device based on the container type) or same across a plurality of different types of containers (e.g., default set is preconfigured into sensor device). In some embodiments, each set of configuration parameters may specify one or more parameters for a signal to be transmitted (e.g., interrogation signal) for reflection off content of the container and/or one or more parameters for receiving and processing the reflected transmitted signal.

In some embodiments, each set of configuration parameters is associated and indexed with a specific range of content fill levels corresponding to when the particular set of configuration parameters is to be utilized. For example, a first set of configuration parameters is to be utilized when a detected fill level is between 0-100 mm (e.g., for a bottom region of the container), a second set of configuration parameters is to be utilized when a detected fill level is between 101-200 mm (e.g., for a middle region of the container), and a third set of configuration parameters is to be utilized when a detected fill level is above 200 mm (e.g., for a top region of the container).

FIG. 10 is a diagram illustrating an embodiment of a user interface for specifying a container type to be associated with a sensor device. In some embodiments, the interface of FIG. 10 is provided on interface device 806 of FIG. 8. In some embodiments, the interface of FIG. 10 is utilized to provide the container type received in 910 of FIG. 9.

Interface screen 1002, instructs a user to turn on the sensor device (e.g., by pressing a button on the sensor device for at least a specified period of time, the sensor device turns on and broadcasts its identifier) and the interface device attempts to detect the sensor device (e.g., listens for a new BLUETOOTH LE signal from a sensor device). When the sensor device has been detected, a connection is established with the sensor device (e.g., communication established at 908 and configuration provided in 914 of FIG. 9). Interface screen 1004 shows a viewfinder display of a live camera image. Using the displayed viewfinder, a user is to capture an image of a barcode printed on a product container. For example, when a barcode is captured within the shown bracket guidelines, the barcode is read and analyzed to determine whether it is a known barcode that corresponds to a particular container type. Once a valid barcode has been detected, the interface progresses to interface screen 1006. In the example shown, interface screen 1006 confirms that the barcode has been detected to correspond to container type “3 Vodka 750 ml” that holds vodka contents. A user is instructed to place a sensor device on the container holding the contents to be measured. Once the sensor device has been engaged with the container, a user is to select the “+” icon and the content amount/level of the container is detected. The interface progresses to interface screen 1008 where the container type, a representative image of the product, and the latest detected remaining content amount/level (e.g., percentage remaining) is displayed.

FIG. 11 is a flowchart illustrating an embodiment of a process for configuring a sensor device. The process of FIG. 11 may be implemented on sensor devices 802 and/or 804 of FIG. 8.

At 1102, a sensor device identifier is broadcasted. In some embodiments, the sensor device identification is the identification received at 902 of FIG. 9. In some embodiments, the sensor device identifier is transmitted in response to entering a pairing mode of the sensor device. For example, the sensor device enters a BLUETOOTH pairing mode to advertise availability of the sensor device for paring. In some embodiments, the sensor device identifier is broadcasted in BLUETOOTH advertising/beacon mode. In some embodiments, a sensor device is first operated in paired mode (e.g., Generic Attribute Profile (GATT) client/server) then switched to advertising/beacon mode. In some embodiments, the sensor device identifier is broadcasted in response to an engagement of a button of the sensor device. For example, when a user presses a button on the sensor device for at least a threshold amount of time, the sensor device enters into a mode that broadcasts the sensor device identification.

At 1104, a communication with an interface device is established. In some embodiments, establishing the communication includes establishing the communication established in 908 of FIG. 9. In some embodiments, a BLUETOOTH connection is established. For example, the sensor device is paired with an interface device and the sensor enters into a paired bidirectional communication mode.

At 1106, a configuration is received from the interface device. In some embodiments, the received configuration is the configuration provided in 914 of FIG. 9. In some embodiments, the received configuration specifies one or more parameters of an interrogation signal that is to be reflected off contents within a container to measure an amount and/or fill level of content included in the container. In some embodiments, the configuration specifies one or more parameters of a receiver of the received reflected interrogation signal. In some embodiments, the configuration specifies one or more parameters of a filter to apply to the received reflected interrogation signal. In some embodiments, the configuration includes an identifier of a profile that has been already stored in a data storage of a sensor device.

In some embodiments, the received configuration specifies a plurality of different sets of configuration parameters. For example, each set corresponds to a different fill level of the container (e.g., each set indexed to a range of fill levels). In some embodiments, using a default set of configuration parameters (e.g., default set of configuration parameters is included in the received configuration), an initial estimated fill level is determined and based on the initial estimate of the fill level, a more specific set of configuration parameters included in the received configuration is identified to be utilized to determine a more accurate fill level.

In some embodiments, each set of configuration parameters identified by the received configuration specifies one or more signal parameters to generate a distinct interrogation signal corresponding to the set. For example, each set of configuration parameters specifies one or more of the following parameters of a signal to be transmitted: a waveform/shape of a signal, a length/width of a signal component (e.g., pulse width), a profile of a signal component, a content of a signal component, a number of pulses in a signal component, a frequency of the signal component (e.g., changing a frequency of an input signal to a speaker changes a spectrum of frequencies outputted by the speaker), an amplitude/intensity/energy of a signal component, a modulation of a signal component (e.g., pulse-width modulation to be utilized), a duty cycle of a signal component, etc. In some embodiments, each set of configuration parameters is identified/indexed for use for a specified range of container fill levels. For example, because the shape of the empty portion of the container (e.g., contributing to different reflection patterns) and a distance an interrogation signal must travel may vary with the fill level of the container, a different interrogation signal is to be utilized for various different fill levels and the signal parameters of these different interrogation signals are specified as different sets of configuration parameters.

In some embodiments, the interrogation signal is shaped to produce an interrogation signal that will result in a received signal with a narrow peak for more accurate and consistent peak detection of a received reflected signal (e.g., reflected signal received at 1112). When multiple pulses are included in the interrogation signal, a received signal is a convolution of the received signal components of the pulses. This resulting signal may be shaped by varying the number, amplitude, width, etc. of the pulses to produce a narrow peak (e.g., correlation peak for detecting time/length interrogation signal travels to determine fill level). For example, pulse width modulation to be performed is specified by a received set of configuration parameters.

In some embodiments, although a manufacturer/vendor specification of a speaker to be utilized to transmit an interrogation signal specifies a minimum energy of an input signal to the speaker, a configuration parameter specifies a signal energy that is lower than the specified rated energy of the speaker manufacturer/vendor. For example, although a manufacturer specifies that 6 volts is the rated voltage that should be provided to a speaker, a voltage between 2-2.8 volts is specified by a configuration parameter to be provided to the speaker. In another example, a voltage as low as 1 volt is supplied to the speaker.

In some embodiments, the received configuration specifies configuration parameters of a signal receiver. For example, parameters of an automatic gain control, a variable gain amplifier, a detection threshold, etc. are specified in the received configuration for receiving and processing a reflected interrogation signal. In some embodiments, the received configuration specifies a plurality of different sets of receiver configuration parameters. For example, each set of receiver configuration parameters corresponds to a different current fill level (e.g., range) of the container (e.g., different receiver configuration parameters corresponding to different sets of interrogation signal configuration parameters of the various different fill level ranges).

At 1108, an interrogation signal to be transmitted is selected based on the received configuration. For example, the received configuration specifies a default set of configuration parameters of a default interrogation signal to be utilized to determine an initial approximate fill level. The received configuration may also specify one or more fill level range specific sets of configuration parameters that specify the specific interrogation signal to be utilized for a particular fill level. For example, for each range of fill levels, a different set of configuration parameters for a specific interrogation signal to be utilized for the particular fill level range is specified in the received configuration. In one example, once an initial approximate fill level is determined using the default set of configuration parameters, a specific set of configuration parameters corresponding to a specific fill level range that includes the initial approximate fill level is selected as the configuration parameters of the interrogation signal to be utilized to determine a more specific fill level. In some embodiments, the received configuration specifies a plurality of sets of configuration parameters and each set is utilized to generate and transmit a corresponding interrogation signal one or more times until a set that results in a consistent fill level measurement has been identified. This set of configuration parameters that resulted in the consistent fill level measurement may be utilized for subsequent measurements of different fill levels and/or this search for a consistent result producing set of configuration parameters may be performed periodically and/or each time a fill level measurement is performed. In some embodiments, the measurement fill level of the identified set is utilized to select the set of configuration parameters to be utilized determine a more accurate fill level. For example, the set of configuration parameters for the fill level range corresponding to the measured fill level is selected.

In some embodiments, based on a previous fill level, the interrogation signal to be transmitted is identified. For example, a previously utilized interrogation signal (e.g., corresponding to a previously selected set of configuration parameters) is selected for use unless a previously determined fill level indicates that another interrogation signal (e.g., corresponding to another set of configuration parameters) should be utilized (e.g., a next fill level range interrogation signal is selected because a previously determined fill level is at the limit of or beyond the valid fill level range of the previously utilized interrogation signal).

At 1110, the selected interrogation signal is transmitted. In some embodiments, the transmitted interrogation signal is generated using a selected set of configuration parameters within the received configuration. In some embodiments, the selected interrogation signal includes one or more signal pulse components specified by the selected set of configuration parameters. For example, each signal pulse may be identical and the signal pulses are emitted sequentially with an optional period of no signal (e.g., silence) between the signal pulses.

The number of signal pulses, the length of the signal pulses, a frequency of the signal pulses, a signal content of the signal pulses, a strength/magnitude of the signal pulses, a profile of the signal pulses, a waveform of a signal pulse, a length of null signal between the signal pulses, a length/width of a signal component, a pulse width, an amplitude/intensity of the signal component, a modulation of the signal component (e.g., pulse-width modulation to be utilized), and/or a duty cycle of the signal component, etc. may be specified by the received configuration.

The variations of the interrogation signal may be due to the type of container that is holding the content to be measured and/or fill level range of the container. For example, the thickness of the container, the material of the container, a shape of the container, a length of the container, a width of the container, a size of the container, and/or an amount/type of the content included in the container may all affect how and where the interrogation signal travels and bounces within the container and the received configuration is specific to the container type and/or fill level of the container to improve the content amount/volume/level measurement of a sensor device.

In some embodiments, by measuring the amount of time it takes for the interrogation signal to travel from a sensor device engaged at the top of the container to content (e.g., liquid) remaining within the container and reflect back to the sensor device, the distance traveled by the interrogation signal before being reflected (e.g., distance between sensor device 100 and liquid surface is half of the total distance traveled by the signal as shown in FIG. 1) may be determined by multiplying the amount of time by the speed of the signal (e.g., speed of sound when the interrogation signal is an ultrasonic signal). If the total distance between the bottom of the container and the sensor device is known, the fill height of the container can be determined (e.g., total distance between bottom and sensor device minus distance between sensor device and content surface). If the shape and volume of the bottle are known, the volume/amount of content contained in the container may be determined.

At 1112, the interrogation signal is received and filtered. In some embodiments, to determine the amount of time it took to receive the reflected interrogation signal, the received reflected interrogation signal is filtered to isolate the desired signal (e.g., band-pass filter the received signal), amplified, and analyzed to detect peaks that correspond to when the reflected signal was received. The received configuration may specify the parameters/configuration of the filter, amplification, analysis, isolation, etc. In some embodiments, a predetermined beginning portion (e.g., predetermined amount of time in the beginning of the signal) of the received signal may be ignored when analyzing the signal to ignore signals that were detected due to coupling between the transmitter and receiver of the sensor device. For example, when the transmitter transmits the signal, the signal may be received by the receiver of the sensor device (e.g., conducted through the sensor device, due to undesired reflection, etc.) before the signal is reflected by the contents of the container, and the undesired received signals received in the beginning portion of the received signal are ignored when identifying the desired received reflected signal. In some embodiments, parameters of the predetermined beginning portion (e.g., amount of time) are specified by the received configuration.

In some embodiments, the parameters of the filtering and/or received interrogation signal processing is specified by the received configuration. For example, parameters of an automatic gain control, a variable gain amplifier, a detection threshold, etc. are specified in the received configuration. In some embodiments, the received configuration specifies a plurality of different sets of receiver configuration parameters. For example, each set of receiver configuration parameters corresponds to a different fill level range of the container (e.g., matching different sets of interrogation signal configuration parameters of the fill level range, matching a default interrogation signal, etc.). In some embodiments, the parameters of the filtering and/or received interrogation signal processing matching the selected interrogation signal is selected and utilized in processing the received interrogation signal.

At 1114, it is determined whether a different interrogation signal should be utilized. In some embodiments, if the default interrogation signal was utilized, it is determined that a more specific different interrogation signal corresponding to an initially determined approximate fill level should be utilized. For example, once an initial default interrogation signal is utilized to determine an approximate of the current fill level, a more specific interrogation signal corresponding to the fill level range of the initial approximate measurement of the current fill level is to be utilized to determine a more precise fill level. In some embodiments, in the event a fill level determined using the selected interrogation signal does not correspond to a valid specified fill level range of the selected interrogation signal, it is determined that a different interrogation signal that corresponds to a fill level range of the determined fill level should be utilized. If at 1114 it is determined that a different interrogation signal should be utilized, the process returns to 1108 where the different interrogation signal is selected (e.g., different set of configuration parameters selected for the interrogation signal). If at 1114 it is determined that a different interrogation signal does not need to be utilized, the process proceeds to 1116.

At 1116, a content level identifier associated with the amount/level of content detected is transmitted along with an identifier of the sensor device. For example, the content level identifier includes a time value associated with the amount of time it took to receive the reflected interrogation signal and/or a distance value associated with the distance traveled by the received reflected interrogation signal.

In some embodiments, the identifier of the sensor device is the sensor device identifier broadcasted in 1102. In some embodiments, the content level identifier and the identifier of the sensor device are broadcasted. For example, the content level identifier and the identifier of the sensor device are broadcasted within a BLUETOOTH Low Energy advertisement packet (e.g., single directional communication of an advertisement/beacon mode). By broadcasting the data one-way rather than transmitting the data via a BLUETOOTH paired bidirectional connection, power saving may be achieved due to the lower power requirements of the BLUETOOTH Low Energy advertisement broadcasting as compared to BLUETOOTH Low Energy paired bidirectional communication. In some embodiments, an interface device may be limited to a maximum number of concurrent paired mode communications while the interface device is able to receive a significantly larger number of advertisement packets from different sensor devices. For example, by utilizing BLUETOOTH Low Energy advertisement broadcasting, a single interface device is able to receive data from a larger number of sensor devices as compared to utilizing BLUETOOTH Low Energy paired bidirectional communication.

In some embodiments, the latest determined content level identifier and the identifier of the sensor device are broadcasted periodically. For example, after 1116, the process returns to 1108 at a periodic interval. In some embodiments, the latest determined content level identifier and the identifier of the sensor device are broadcasted dynamically. For example, after 1116, the process returns to 1108 when a dynamic condition has been met (e.g., when a movement/motion sensor (e.g., accelerometer) on the sensor device has detected movement).

FIG. 12 is a flowchart illustrating an embodiment of a process for performing an action based on a determined content amount. The process of FIG. 12 may be at least in part implemented on interface device 806 and/or server 810 of FIG. 8.

At 1202, a content fill identifier associated with an amount/level of content detected within a container is received. In some embodiments, the received content fill identifier was transmitted in 1116 of FIG. 11. In some embodiments, the content fill identifier has been received along with an associated sensor device identifier of a specific sensor device. The content fill identifier may be utilized to track change in content amount/level of a specific container measured by a sensor device. In some embodiments, the content fill identifier has been received via a local wireless communication protocol (e.g., Wifi, BLUETOOTH Low Energy, etc.). In some embodiments, the content fill identifier is received by interface device 806 of FIG. 8. In some embodiments, the content fill identifier is received by server 810 via network 808 of FIG. 8. In various embodiments, the received content fill identifier is one of a plurality of content fill identifiers received from the same sensor device over time for the same container and/or from different sensor devices for different containers. In some embodiments, the content fill identifier includes a time value associated with the amount of time it took to receive the reflected interrogation signal and/or a distance value associated with the distance traveled by the received reflected interrogation signal.

At 1204, a fill value corresponding to the received content fill identifier is determined. For example, a percentage value and/or a volume amount value corresponding to the received content fill identifier is determined. In some embodiments, using an identifier of a sensor device associated with the received content fill identifier, a container type associated with the received content fill identifier is identified. For example, the identification of a specific container type received in 910 of FIG. 9 has been previously associated with the sensor device identifier and this identification of the container type is retrieved using the sensor device identifier. In some embodiments, the sensor device identifier and the received content level identifier are provided to server 810 by interface device 806 and server 810 determines the corresponding fill amount/level. In some embodiments, the received content fill identifier identifies the associated container type of the sensor device that transmitted the received content fill identifier.

In some embodiments, a specific container type is associated with a specific table/database/data structure/formula that maps an identifier of the received content fill identifier to an amount/level of content included in a container of the associated container type. For example, the fill percentage and/or volume value that corresponds to the received content fill identifier is determined. In some embodiments, the received content fill identifier is modified before being utilized to obtain the amount/level value using the specific table/database/data structure/formula for the specific container type.

At 1206, an action associated with the content fill identifier is performed. For example, the determined fill value is stored. For example, server 810 of FIG. 8 tracks content remaining within each container being tracked using one or more sensor devices. In some embodiments, performing the action includes performing inventory management. For example, an inventory of a liquor beverage remaining in an opened bottle as well as new bottles stocked on hand are tracked to provide reporting of consumption amount, cost of goods sold, consumption pattern, inventory forecasting, etc.

In some embodiments, performing the action includes providing an alert when it is detected that inventory of the content is low. For example, a mobile application alert on an interface device is provided when the amount/level of content reaches below a threshold value for a single container and/or an inventory across all inventory on hand of the content. In another example, the alert is provided on the sensor device (e.g., flashing light). In some embodiments, the alert is only provided if the amount/level of content reaches below a threshold value. The threshold value may be dynamically determined based on a historical depletion pattern of the content. In some embodiments, an interface device application and/or a webpage is utilized to display and manage inventory of content.

In some embodiments, a database tracks remaining content in each container measured by a sensor device, and for each tracked content stores one or more of the following: sensor device identifier, type of liquid, brand of product, UPC, bar code identifier, quantity remaining, quantity utilized over a time period (e.g., minute/day/week/month/year, etc.), new product container/bottle on hand, price, distributor, date and time of purchase, servings per use, time of servings consumed, location, expiration, chemical composition, odor, color, temperature, humidity, ingredients of the content, and various content composition information (e.g., sulfites, ethyl, etc.). In some embodiments, once sufficient fill values are collected over time, performing the action includes determining a recommended time to reorder, a rate of consumption, an average amount consumed per pour/usage, etc. In some embodiments, a user is able to establish and specify one or more inventory thresholds based on product category, brand, type of beverage, cost, and/or recipes. For example, when the inventory of a product falls below a threshold, a notification may be provided in real-time.

In some embodiments, performing the action includes determining whether the latest determined fill value is larger than a previously determined fill value detected using the same sensor device. For example, it is assumed that containers are not refilled with contents and when contents of a container has been entirely consumed, a user is to replace the empty container with a new full container of the same container type and transfer the sensor device from the empty container to the new full container. The use of a new product container is automatically determined and tracked by detecting whether the latest determined fill value is larger than a previously determined fill value. In some embodiments, if a user desires to utilize a different container type with a sensor device that has been already associated with an existing container type, the user is to reconfigure the sensor device for the new container type.

In some embodiments, performing the action includes obtaining Point of Sale data of items (e.g., mixed drinks, shots, glasses, etc.) sold and correlating the POS data with tracked content inventory depletion. This may offer a view into which types of beverages are in demand, how beverages are consumed, and pairing between different products (e.g., food pairing). Based on this information, a user entity profile may be developed to enable insights into past performance and future forecasting of the user entity's sales metrics. In some embodiments, by analyzing consumption patterns across user entities, geographical regional analysis may be performed to analyze product trends. This information may be utilized to provide recommendations on items to offer for sale based on seasonality, real-time consumption data, and trends for a particular geographical area as well as across a larger region.

In some embodiments, a recipe (e.g., mixed drink recipe) is recommended based on inventory availability of ingredients (e.g., determined amount/level of content), season, consumer profile, holidays, social recommendations, etc. For example, a recipe recommendation service detects the availability of ingredient beverages in real-time, analyzes applicable seasonal/time-based demand profiles of recipes, and suggestions from consumers to recommend the best possible drink recipes to offer. In some embodiments, based on current recipes offered by a user entity and/or new recipes to be offered by the user entity, inventory forecasting is adjusted to provide a recommendation of additional quantities of products/containers to order from one or more distributors. For example, when a new recipe is added, the missing ingredients and/or low inventory ingredients are automatically ordered from the most appropriate distributors (e.g., distributors/merchants selected based on price) in quantities that have been forecasted based on detected product content depletion patterns of the user entity as well as for other user entities (e.g., similar user entities that have already offered the new recipe).

In some embodiments, performing the action includes assisting in ordering additional quantities of the content being tracked. For example, the consumption amount and pattern of the content and amount of full product containers on hand are analyzed to determine how many additional containers of the content should be ordered to replenish the stock inventory of the container. In some embodiments, the order for additional product containers may be automatically provided to a distributor/merchant of the product container to automatically place an order for the content. For example, a user is provided an option to reorder a product from a distributor by allowing the user to automatically send inventory reports periodically to the distributor. In some embodiments, a notification to order additional quantities of a product/content is provided to a user and the user may provide an associated confirmation to automatically place an order for the recommended additional quantities of the product/content from a recommended/preset distributor. Order configuration such as distributor preference, payment information, preferred time of delivery, etc. may be stored and utilized when automatically placing an order.

In some embodiments, a product marketplace with various distributor/merchant options for products is accessible via an interface device such as interface device 806 of FIG. 8. In some embodiments, a device/server is able to locate a distributor's delivery truck or service that is nearby and automatically order/request delivery of one or more products/containers that are preferred to be restocked immediately. For example, when it is detected that additional quantity of a product is required prior to a normal product ordering/delivery schedule, immediate delivery from a nearby source is automatically requested. A user may be provided a notification prior to ordering/delivery to obtain authorization from the user.

FIG. 13 is a flowchart illustrating an embodiment of a process for determining one or more sets of configuration parameters of a container. For example, the configuration provided in 914 of FIG. 9 and/or received in 1106 of FIG. 11 is determined at least in part using the process of FIG. 13. The process of FIG. 13 may be repeated for each different type of container.

At 1302, a container to be profiled is selected. For example, a bottle to be profiled to determine its configuration parameters is selected. Selecting the container may include scanning a barcode of the container, capturing a label of the container, selecting/providing an identifier of the container, etc.

At 1304, the selected container at a current fill level is profiled. In some cases, the container is initially full and the full container is profiled. In some embodiments, profiling the container includes determining an expected current fill level of the container. For example, an authoritative measuring device is utilized to determine the expected fill level. The authoritative measuring device may be a special measuring device that provides a highly accurate measurement of a depth of the fill level of the container. In some embodiments, the expected current fill level is determined using image processing. For example, an image of the container is captured and the expected fill level of the container is determined by processing the captured image to identify the depth of the fill level captured in the image. In some embodiments, the expected current fill level is determined using a weight scale. For example, a weight of an empty container is known and/or measured and a weight of the current fill level filled container is measured. Based on the difference between these weights and the density of the contents and/or known shape profile of the container, the expected fill level is determined. Once the expected fill level is determined, a configuration of a sensor device (e.g., device 200) that will yield the closest fill level measurement to the expected fill level may be identified by iterating through various combinations of configuration parameters.

In some embodiments, a sensor device (e.g., device 200) is placed (e.g., capped) on the container and the sensor device is configured to iterate through various configuration parameters. For example, measurements are performed using various combinations of interrogation signal parameters and receiver parameters and corresponding measurement results (e.g., identified fill/distance value) of the various combinations are stored. The combinations of various configuration parameters that are varied may include various parameters for one or more of the following of an interrogation signal: a waveform/shape of a signal, a length/width of a signal component (e.g., pulse width), a profile of a signal component, a content of a signal component, a number of pulses in a signal component, a frequency of a signal component, an amplitude/intensity of a signal component, a modulation of a signal component (e.g., pulse-width modulation to be utilized), a duty cycle of a signal component, etc. The combinations of various configuration parameters that are varied may include various parameters for one or more of the following for a signal receiver: an automatic gain control, a variable gain amplifier, a detection threshold, etc. For example, for a given interrogation signal with the same energy, a content reflected signal will be higher in energy (e.g., requiring a higher detection threshold) for a greater fill level as compared to a lower fill level (e.g., requiring a lower detection threshold since a reflected interrogation signal had to travel a greater distance and experienced greater attenuation).

At 1306 it is determined whether the container is empty.

If at 1306 it is determined that the container is not empty, at 1308, content of the selected container is removed by an incremental amount. For example, a controlled amount of content is emptied from the container for a next profiling of the container at the new fill level. In some embodiments, the amount of content removed from the container is a preconfigured amount based on a volume, weight, and/or content height. For example, content is removed from the container such that the height of the content within the container drops by 1 mm. In some embodiments, the incremental amount of content is removed automatically. For example, a spout and a valve/pump has been added to the container (e.g., container has been drilled near the bottom of the container and a spout/valve/pump has been added) and the valve and/or pump is automatically controlled to empty a predetermined amount of content. Once the incremental amount of content has been emptied, the process returns to 1304 where the new fill level of the container is profiled.

If at 1306 it is determined that the container is empty, at 1310 the determined measurement results of various combinations of configuration parameters at various content fill levels are analyzed to identify groupings of content fill level ranges and a corresponding set of configuration parameters for each content fill level range. For example, for each profiled content fill level, the various fill level measurement results of the various configuration parameter combinations are sorted and ranked based on closeness to the expected fill level. Then a set of configuration parameters that will result in fill level measurements that are within an acceptable tolerance for a greatest continuous range of fill levels is identified. Then for remaining fill level ranges, a next set of configuration parameters that will result in fill level measurements that are within the accepted tolerance for a greatest continuous range of remaining fill levels is identified. This process of identifying a next set of configuration parameters is repeated until all fill levels have been covered by fill level corresponding configuration parameter sets.

At 1312, the content fill level ranges and corresponding configuration parameters for each range are stored as the configuration for the container type of the selected container. For example, at least a portion of the stored configuration is provided in 914 of FIG. 9 and/or received in 1106 of FIG. 11 as the configuration for a particular type of container.

Although the foregoing embodiments have been described in some detail for purposes of clarity of understanding, the invention is not limited to the details provided. There are many alternative ways of implementing the invention. The disclosed embodiments are illustrative and not restrictive. 

What is claimed is:
 1. A system, comprising: a processor configured to: receive an identity of a container coupled to a content level sensor device; and identify a plurality of signal parameters associated with the container; and a communication interface coupled with the processor and configured to transmit the signal parameters to the content level sensor device, wherein the signal parameters are indexed according to a level of content in the container.
 2. The system of claim 1, wherein the plurality of signal parameters includes one or more configuration parameters specifying a configuration of one or more of the following: a frequency of a signal component, a pulse width of the signal component, a number of pulses in the signal component, an amplitude/intensity of the signal component and a duty cycle of the signal component.
 3. The system of claim 1, wherein the plurality of signal parameters includes one or more parameters to perform a pulse-width modulation.
 4. The system of claim 1, wherein the plurality of signal parameters identifies an input signal energy of a speaker of the content level sensor device that is less than a manufacturer specified input energy minimum of the speaker.
 5. The system of claim 1, wherein receiving the identity of the container includes receiving a barcode identifier of the container.
 6. The system of claim 1, wherein the content level sensor device is a cap of a beverage container.
 7. The system of claim 1, wherein the content level sensor device is configured to detect an amount of liquid included in the container.
 8. The system of claim 1, wherein the signal parameters have been predetermined specifically for a container type of the container.
 9. The system of claim 1, wherein the transmitting the signal parameters includes transmitting the signal parameters via a Bluetooth connection.
 10. The system of claim 1, wherein the plurality of signal parameters is at least in part utilized by the content level sensor device to generate an interrogation signal to measure the content level of the container.
 11. The system of claim 10, wherein measuring the content level includes determining a remaining volume of content included in the container.
 12. The system of claim 10, wherein measuring the content level includes determining an amount of volume of content included in the container that has been removed from the container.
 13. The system of claim 10, wherein the interrogation signal is an ultrasonic signal outputted by the content level sensor device.
 14. The system of claim 1, wherein the signal parameters are indexed according to the level of content in the container at least in part by being indexed according to a range of fill levels of content in the container.
 15. The system of claim 1, wherein identifying the plurality of signal parameters associated with the container includes identifying a plurality of sets of signal parameters and each set of the plurality of sets of signal parameters is associated with a different content fill level of the container.
 16. The system of claim 1, wherein the content level sensor device is configured to utilize a default signal parameter to generate an initial interrogation signal to determine an approximate content level of the container and based on the approximate content level, obtain a different signal parameter of the identified plurality of signal parameters to generate a different interrogation signal to determine a more accurate content level of the container.
 17. The system of claim 1, wherein the communication interface is further configured to transmit one or more signal receiver configuration parameters for the container to the content level sensor device.
 18. The system of claim 17, wherein the one or more signal receiver configuration parameters are indexed according to the level of content in the container.
 19. The system of claim 17, wherein the one or more signal receiver configuration parameters includes one or more parameters specifying a configuration of one or more of the following: an automatic gain control, a variable gain amplifier, and a detection threshold.
 20. The system of claim 1, wherein the plurality of signal parameters includes one or more parameters identifying a beginning portion of a received signal of the content level sensor device to be not utilized when analyzing the received signal.
 21. A method, comprising: receiving an identity of a container coupled to a content level sensor device; identifying a plurality of signal parameters associated with the container; and using a data communication interface to transmit the signal parameters to the content level sensor device, wherein the signal parameters are indexed according to a level of content in the container. 